Method of isolating macrocyclic polyethers

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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Other Related Categories

540467, C07D32300

Type

Patent

Status

active

Patent number

046562958

Description

ABSTRACT:
A process for isolating macrocyclic polyethers from open-chained polyglycols in a mixture by extraction with saturated hydrocarbons in the presence of at least 10 percent by weight ethylene glycol based on the weight of the mixture of macrocyclic polyethers and open-chained polyglycols.

REFERENCES:
patent: 4254034 (1981-03-01), van Zon
patent: 4435582 (1984-03-01), Krijnen et al.
Mandolini et al, Synthetic Communications, vol. 9, pp. 851-856 (1979).

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